A transformer of 100% efficiency has 500 turns in the primary and 10,000 turns in the secondary coil. If the primary is connected to 220V mains supply, what is the voltage across the secondary coil?

A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an a.c. supply of 110 V and a current of 10 A flows in it The voltage across the secondary and the current in its respectively are

A transformer has an efficiency of 80%. It works at 4 kilowatt and 100 volt. If the secondary voltage is 240 volt, calculate the primary and secondary currents.

Primary of a transformer is connected to .5 V dry cell. What will be the output voltage?

The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of 20V,50Hz. The secondary will have an output of

Ratio of number of turns in primary and secondary coil of 440V-22000V step up transformer is

The primary coil of an ideal stepup transformer has 100 turns and the transformer ratio is also 100. The input voltage and power are 220 V and 1100 W. Calculate voltage across the secondary

A transformer whose efficiency is 90%, draws 5 A when 200 V is applied to its primary coil. If output is drawn at 300 V, what is the current in secondary coil ? If number of turns in primary coil is 500, what is the number of turns in secondary coil?